My exhaust is too quiet... Help!!
#2
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yank the cats, i just did today and
i went from a very comfortable sound, and when they took them off, it got a little louder than i anticipated, loud enough to raddle the back piece behind the seats, especially under hard exceleration.. but oh well..
i went from a very comfortable sound, and when they took them off, it got a little louder than i anticipated, loud enough to raddle the back piece behind the seats, especially under hard exceleration.. but oh well..
#3
Originally Posted by rgvsierra
yank the cats, i just did today and
i went from a very comfortable sound, and when they took them off, it got a little louder than i anticipated, loud enough to raddle the back piece behind the seats, especially under hard exceleration.. but oh well..
i went from a very comfortable sound, and when they took them off, it got a little louder than i anticipated, loud enough to raddle the back piece behind the seats, especially under hard exceleration.. but oh well..
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By removing the contents of a cat and replacing the hollow body back in the exhaust system you are in fact creating a "tuning chamber." From a performance and acoustic point of view this can net undesirable results. Usually this will equate to a loud and boomy start-up and low rpm drone. In the Gen III motors you will find that it creates a 2700-3000 rpm drone while crusing or a peak resonace note @ 1800-2000 rpm. As far as the muffler is from the cab it has little chance of removing these harmonics. I have found the addition of short resonators with a .25" less diameter internal tube (as compared to the ptubing size of the y-pipe or head pipe) will provide a good balance in power and deliver a good exhaust note. This is not necessarily the case with the 6.0L .. that animal is a different beast to tune.
#5
Originally Posted by oxidizr
By removing the contents of a cat and replacing the hollow body back in the exhaust system you are in fact creating a "tuning chamber." From a performance and acoustic point of view this can net undesirable results. Usually this will equate to a loud and boomy start-up and low rpm drone. In the Gen III motors you will find that it creates a 2700-3000 rpm drone while crusing or a peak resonace note @ 1800-2000 rpm. As far as the muffler is from the cab it has little chance of removing these harmonics. I have found the addition of short resonators with a .25" less diameter internal tube (as compared to the ptubing size of the y-pipe or head pipe) will provide a good balance in power and deliver a good exhaust note. This is not necessarily the case with the 6.0L .. that animal is a different beast to tune.
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99silver
i had them weld in a 2.5 inch section in place of the cats, i did a search on here and gutting the cats wasent to recomended by various posts i read..
i only did this mod cause a cam will be going in soon and figured it would compliment it..
i had them weld in a 2.5 inch section in place of the cats, i did a search on here and gutting the cats wasent to recomended by various posts i read..
i only did this mod cause a cam will be going in soon and figured it would compliment it..
#7
Originally Posted by rgvsierra
i only did this mod cause a cam will be going in soon and figured it would compliment it..
RGV,
You have any clips of your exhaust I could listen too? Does anybody have a clip of their catl-ess exhaust I could check out?
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#8
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If you build a good custom wye-pipe to go in place of the cats you won't be louder,but you will make more power,then if you want loud substitute a 3"Dynomax race muffler for your current muffler.That setup will make big power and wakeup the entire naborhood at the same time.
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i dont have any sound clips, but i'll see if tiburon will help me there, he has a vid camera, i'll see what i can do..
i cant wait to see how it sounds with the 216/220 cam.. oh my
i cant wait to see how it sounds with the 216/220 cam.. oh my